RunRealtime()

Signed-off-by: Jeff Carr <jcarr@wit.com>

.gitignore

@@ -0,0 +1,6 @@
+*.swp
+go.mod
+go.sum
+
+example1/example1
+example2/example2

LICENSE

@@ -1,231 +1,674 @@
                     GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
-Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
 
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+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
 
-Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
 
-a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
 
-b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
 
-c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
 
-d) Limiting the use for publicity purposes of names of licensors or authors of the material; or
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
 
-e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
 
-f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors.
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
 
-All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
 
-If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
 
-Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
 
   8. Termination.
-You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
 
-However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
 
-Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
 
-Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
 
   9. Acceptance Not Required for Having Copies.
-You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
 
   10. Automatic Licensing of Downstream Recipients.
-Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
 
-An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
 
-You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
 
   11. Patents.
-A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
 
-A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
 
-Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
 
-In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
 
-If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
 
-If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
 
-A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
 
-Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
 
   12. No Surrender of Others' Freedom.
-If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
 
   13. Use with the GNU Affero General Public License.
-Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
 
   14. Revised Versions of this License.
-The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
 
-Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
 
-If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
 
   15. Disclaimer of Warranty.
-THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
   16. Limitation of Liability.
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
 
   17. Interpretation of Sections 15 and 16.
-If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
 
             How to Apply These Terms to Your New Programs
 
-If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
 
-To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
 
     <one line to give the program's name and a brief idea of what it does.>
     Copyright (C) <year>  <name of author>
 
-This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
 
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
-If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
 
     <program>  Copyright (C) <year>  <name of author>
     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
 
-The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
 
-You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <http://www.gnu.org/licenses/>.
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
 
-The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -1,16 +1,10 @@
 all:
-	# 'gaper' is a simple and smart golang tool that just rebuilds every time you change a file
-	# go get -u github.com/maxcnunes/gaper
-	# gaper
+	GO111MODULE=off go build
 
-# simple sortcut to push all git changes
-push:
-	git pull
-	git add --all
-	-git commit -a -s
-	git push
+goimports:
+	goimports -w *.go
 
-# should update every go dependancy (?)
-update:
-	git pull
-	go get -v -t -u ./...
+redomod:
+	rm -f go.*
+	GO111MODULE= go mod init
+	GO111MODULE= go mod tidy

README.md

@@ -8,12 +8,8 @@ non-blocking unbuffered way
 # install
 
 ```
-go get -v -t -u git.wit.com/jcarr/shell
+go get -v -t -u go.wit.com/lib/gui/shell
 ```
 # License
 
-This is a GPL 3.0 Project.
-
-# Credits
-
-* The developers that made the golang (analabs) cross platform UI
+The same License as GO itself

args.go

@@ -0,0 +1,22 @@
+package shell
+
+// initializes logging and command line options
+
+import (
+	"go.wit.com/log"
+)
+
+var NOW *log.LogFlag
+var INFO *log.LogFlag
+var RUN *log.LogFlag
+var SSH *log.LogFlag
+
+func init() {
+	full := "go.wit.com/lib/gui/shell"
+	short := "shell"
+
+	NOW = log.NewFlag("NOW", true, full, short, "temp debugging stuff")
+	INFO = log.NewFlag("INFO", false, full, short, "General Info")
+	RUN = log.NewFlag("RUN", false, full, short, "Run() info")
+	SSH = log.NewFlag("SSH", false, full, short, "ssh() info")
+}

cmd.go

@@ -0,0 +1,237 @@
+package shell
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/go-cmd/cmd"
+	"go.wit.com/log"
+)
+
+// this is a simplified interaction with the excellent
+// go-cmd/cmd package to work 'shell' like.
+
+// in all cases here, STDERR -> STDOUT
+// If you want the output from whatever you run
+// to be captured like it appears when you see it
+// on the command line, this is what this tries to do
+
+/*
+	if r := shell.Run([]{"ping", "-c", "3", "localhost"}); r.Error == nil {
+		if r.Exit == 0 {
+			log.Println("ran ok")
+		} else {
+			log.Println("ran")
+		}
+		// all stdout/stderr captured in r.Stdout
+	}
+*/
+
+// shortcut, sends a blank value for pwd
+// which means the exec Dir is not set
+// echos output (otherwise use RunQuiet)
+func Run(argv []string) cmd.Status {
+	return PathRun("", argv)
+}
+
+// exec the cmd at a filepath. this does not change the working directory
+// sets the exec dir if it's not an empty string
+// combines stdout and stderr
+// echo's output (otherwise use PathRunQuiet()
+// this is basically the exact example from the go-cmd/cmd devs
+// where the have rocked out a proper smart read on both filehandles
+// https://dave.cheney.net/2013/04/30/curious-channels
+func PathRun(path string, argv []string) cmd.Status {
+	return PathRunLog(path, argv, NOW)
+}
+
+// the actual wrapper around go-cmd/cmd
+// adds a log Flag so that echo to stdout can be enabled/disabled
+func PathRunLog(path string, argv []string, logf *log.LogFlag) cmd.Status {
+	var save []string // combined stdout & stderr
+	var arg0 string
+	var args []string
+	if logf == nil {
+		logf = NOW
+	}
+	log.Log(logf, "shell.PathRunLog() Path =", path, "cmd =", argv)
+	// Check if the slice has at least one element (the command name)
+	if len(argv) == 0 {
+		var s cmd.Status
+		s.Error = errors.New("Error: Command slice is empty.")
+		return s
+	}
+	if len(argv) == 1 {
+		// Pass the first element as the command, and the rest as variadic arguments
+		arg0 = argv[0]
+	} else {
+		arg0 = argv[0]
+		args = argv[1:]
+	}
+
+	// Disable output buffering, enable streaming
+	cmdOptions := cmd.Options{
+		Buffered:  false,
+		Streaming: true,
+	}
+
+	// Create Cmd with options
+	envCmd := cmd.NewCmdOptions(cmdOptions, arg0, args...)
+	if path != "" {
+		// set the path for exec
+		envCmd.Dir = path
+	}
+
+	// Print STDOUT and STDERR lines streaming from Cmd
+	doneChan := make(chan struct{})
+	go func() {
+		defer close(doneChan)
+		// Done when both channels have been closed
+		// https://dave.cheney.net/2013/04/30/curious-channels
+		for envCmd.Stdout != nil || envCmd.Stderr != nil {
+			select {
+			case line, open := <-envCmd.Stdout:
+				if !open {
+					envCmd.Stdout = nil
+					continue
+				}
+				save = append(save, line)
+				log.Log(logf, line)
+				// fmt.Println(line)
+			case line, open := <-envCmd.Stderr:
+				if !open {
+					envCmd.Stderr = nil
+					continue
+				}
+				save = append(save, line)
+				log.Log(logf, line)
+				// fmt.Println(line)
+			}
+		}
+	}()
+
+	// Run and wait for Cmd to return, discard Status
+	<-envCmd.Start()
+
+	// Wait for goroutine to print everything
+	<-doneChan
+
+	s := envCmd.Status()
+	s.Stdout = save
+	return s
+}
+
+// uses the 'log' package to disable echo to STDOUT
+// only echos if you enable the shell.INFO log flag
+func PathRunQuiet(pwd string, args []string) cmd.Status {
+	return PathRunLog(pwd, args, INFO)
+}
+
+// send blank path == use current golang working directory
+func RunRealtime(args []string) cmd.Status {
+	return PathRunRealtime("", args)
+}
+
+// echos twice a second if anything sends to STDOUT or STDERR
+// not great, but it's really just for watching things run in real time anyway
+// TODO: fix \r handling for things like git-clone so the terminal doesn't
+// have to do a \n newline each time.
+// TODO: add timeouts and status of things hanging around forever
+func PathRunRealtime(pwd string, args []string) cmd.Status {
+	// Check if the slice has at least one element (the command name)
+	if len(args) == 0 {
+		var s cmd.Status
+		s.Error = errors.New("Error: Command slice is empty.")
+		return s
+	}
+
+	// Start a long-running process, capture stdout and stderr
+	a, b := RemoveFirstElement(args)
+	findCmd := cmd.NewCmd(a, b...)
+	if pwd != "" {
+		findCmd.Dir = pwd
+	}
+	statusChan := findCmd.Start() // non-blocking
+
+	ticker := time.NewTicker(5 * time.Millisecond)
+
+	// this is interesting, maybe useful, but wierd, but neat. interesting even
+	// Print last line of stdout every 2s
+	go func() {
+		// loop very quickly, but only print the line if it changes
+		var lastout string
+		var lasterr string
+		for range ticker.C {
+			status := findCmd.Status()
+			n := len(status.Stdout)
+			if n != 0 {
+				newline := status.Stdout[n-1]
+				if lastout != newline {
+					lastout = newline
+					log.Info(lastout)
+				}
+			}
+			n = len(status.Stderr)
+			if n != 0 {
+				newline := status.Stderr[n-1]
+				if lasterr != newline {
+					lasterr = newline
+					log.Info(lasterr)
+				}
+			}
+			if status.Complete {
+				return
+			}
+		}
+	}()
+
+	// Stop command after 1 hour
+	go func() {
+		<-time.After(1 * time.Hour)
+		findCmd.Stop()
+	}()
+
+	// Check if command is done
+	select {
+	case finalStatus := <-statusChan:
+		log.Info("finalStatus =", finalStatus.Exit, finalStatus.Error)
+		return finalStatus
+		// done
+	default:
+		// no, still running
+	}
+
+	// Block waiting for command to exit, be stopped, or be killed
+	finalStatus := <-statusChan
+	return finalStatus
+}
+
+func blah(cmd []string) {
+	r := Run(cmd)
+	log.Info("cmd =", r.Cmd)
+	log.Info("complete =", r.Complete)
+	log.Info("exit =", r.Exit)
+	log.Info("err =", r.Error)
+	log.Info("len(stdout+stderr) =", len(r.Stdout))
+}
+
+// run these to see confirm the sytem behaves as expected
+func RunTest() {
+	blah([]string{"ping", "-c", "3", "localhost"})
+	blah([]string{"exit", "0"})
+	blah([]string{"exit", "-1"})
+	blah([]string{"true"})
+	blah([]string{"false"})
+	blah([]string{"grep", "root", "/etc/", "/proc/cmdline", "/usr/bin/chmod"})
+	blah([]string{"grep", "root", "/proc/cmdline"})
+	fmt.Sprint("blahdone")
+}
+
+// this is stuff from a long time ago that there must be a replacement for
+func RemoveFirstElement(slice []string) (string, []string) {
+	if len(slice) == 0 {
+		return "", slice // Return the original slice if it's empty
+	}
+	return slice[0], slice[1:] // Return the slice without the first element
+}

color.go

@@ -0,0 +1,29 @@
+package shell
+
+import (
+	"fmt"
+)
+
+func get_terminal_color_palette() string {
+	// var runes rune
+	// color1 := "\x1b[0;29m  \x1b[0m"
+	// runes = []rune(color1)
+	// view.WriteRunes(runes)
+
+	color1 := "\x1b[0;29m  \x1b[0m"
+	color2 := "\x1b[0;31m  \x1b[0m"
+	color3 := "\x1b[0;32m  \x1b[0m"
+	color4 := "\x1b[0;33m  \x1b[0m"
+	color5 := "\x1b[0;34m  \x1b[0m"
+	color6 := "\x1b[0;35m  \x1b[0m"
+	color7 := "\x1b[0;36m  \x1b[0m"
+	color8 := "\x1b[0;37m  \x1b[0m"
+
+	return color1 + " " + color2 + " " + color3 + " " + color4 + " " + color5 + " " + color6 + " " + color7 + " " + color8
+}
+
+// what genius figured this out?
+// originally from github.com/dimasma0305/GoFetch
+func TestTerminalColor() {
+	fmt.Println(get_terminal_color_palette())
+}

md5sum.go

@@ -0,0 +1,39 @@
+package shell
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"io"
+	"log"
+	"os"
+)
+
+func hash_file_md5(filePath string) (string, error) {
+	var returnMD5String string
+	file, err := os.Open(filePath)
+	if err != nil {
+		return returnMD5String, err
+	}
+	defer file.Close()
+	hash := md5.New()
+	if _, err := io.Copy(hash, file); err != nil {
+		return returnMD5String, err
+	}
+	hashInBytes := hash.Sum(nil)[:16]
+	returnMD5String = hex.EncodeToString(hashInBytes)
+	return returnMD5String, nil
+
+}
+
+// hash thyself:  hash_file_md5(os.Args[0])
+func Md5sum(filename string) string {
+	filename = Path(filename)
+	log.Println("shell.Md5sum() START filename =", filename)
+	hash, err := hash_file_md5(filename)
+	if err == nil {
+		log.Println("shell.Md5sum() hash =", hash)
+		return hash
+	}
+	log.Println("shell.Md5sum() failed err =", err.Error())
+	return ""
+}

old.go

@@ -0,0 +1,172 @@
+package shell
+
+// old code and probably junk
+
+import (
+	"io/ioutil"
+	"net/http"
+	"os"
+	"os/exec"
+
+	"go.wit.com/log"
+)
+
+// TODO: look at https://github.com/go-cmd/cmd/issues/20
+// use go-cmd instead here?
+
+var callback func(interface{}, int)
+
+var shellStdout *os.File
+var shellStderr *os.File
+
+var spewOn bool = false
+var quiet bool = false
+
+// var msecDelay   int  = 20	// number of milliseconds to delay between reads with no data
+
+// var bytesBuffer bytes.Buffer
+// var bytesSplice []byte
+
+func handleError(c interface{}, ret int) {
+	log.Log(INFO, "shell.Run() Returned", ret)
+	if callback != nil {
+		callback(c, ret)
+	}
+}
+
+func init() {
+	callback = nil
+}
+
+func InitCallback(f func(interface{}, int)) {
+	callback = f
+}
+
+// this means it won't copy all the output to STDOUT
+func Quiet(q bool) {
+	quiet = q
+}
+
+/*
+func Script(cmds string) int {
+	// split on new lines (while we are at it, handle stupid windows text files
+	lines := strings.Split(strings.Replace(cmds, "\r\n", "\n", -1), "\n")
+
+	for _, line := range lines {
+		line = Chomp(line) // this is like 'chomp' in perl
+		log.Log(INFO, "LINE:", line)
+		time.Sleep(1)
+		RunString(line)
+	}
+	return 0
+}
+*/
+
+func Unlink(filename string) bool {
+	if err := os.Remove(filename); err != nil {
+		return Exists(filename)
+	} else {
+		return Exists(filename)
+	}
+}
+
+// run interactively. output from the cmd is in real time
+// shows all the output. For example, 'ping -n localhost'
+// shows the output like you would expect to see
+func RunSimple(cmd []string) error {
+	log.Log(INFO, "NewRun() ", cmd)
+
+	return PathRunSimple("", cmd)
+}
+
+func PathRunSimple(workingpath string, cmd []string) error {
+	log.Log(INFO, "NewRun() ", cmd)
+
+	process := exec.Command(cmd[0], cmd[1:len(cmd)]...)
+	// Set the working directory
+	process.Dir = workingpath
+	process.Stderr = os.Stderr
+	process.Stdin = os.Stdin
+	process.Stdout = os.Stdout
+	process.Start()
+	err := process.Wait()
+	if err != nil {
+		log.Log(INFO, "shell.Exec() err =", err)
+	}
+	return err
+}
+
+// return true if the filename exists (cross-platform)
+
+// return true if the filename exists (cross-platform)
+func Exists(filename string) bool {
+	_, err := os.Stat(Path(filename))
+	if os.IsNotExist(err) {
+		return false
+	}
+	return true
+}
+
+// makes the directory
+func Mkdir(dir string) bool {
+	if Dir(dir) {
+		// already a dir
+		return true
+	}
+	if Exists(dir) {
+		// something else is there
+		return false
+	}
+	Run([]string{"mkdir", "-p", dir})
+	return true
+}
+
+func IsDir(dirname string) bool {
+	return Dir(dirname)
+}
+
+// return true if the filename exists (cross-platform)
+func Dir(dirname string) bool {
+	info, err := os.Stat(Path(dirname))
+	if os.IsNotExist(err) {
+		return false
+	}
+	return info.IsDir()
+}
+
+// Cat a file into a string
+func Cat(filename string) string {
+	buffer, err := ioutil.ReadFile(Path(filename))
+	// log.Log(INFO, "buffer =", string(buffer))
+	if err != nil {
+		return ""
+	}
+	return string(buffer)
+}
+
+func RunPathHttpOut(path string, cmd []string, w http.ResponseWriter, r *http.Request) error {
+	log.Warn("Run(): ", cmd)
+
+	process := exec.Command(cmd[0], cmd[1:len(cmd)]...)
+	process.Dir = path
+	process.Stderr = os.Stderr
+	process.Stdin = r.Body
+	process.Stdout = w
+	process.Start()
+	err := process.Wait()
+	log.Warn("shell.Exec() err =", err)
+	return err
+}
+
+func RunHttpOut(cmd []string, w http.ResponseWriter, r *http.Request) error {
+	log.Warn("NewRun() ", cmd)
+
+	process := exec.Command(cmd[0], cmd[1:len(cmd)]...)
+	process.Stderr = os.Stderr
+	process.Stdin = r.Body
+	process.Stdout = w
+	process.Start()
+	err := process.Wait()
+	log.Warn("shell.Exec() err =", err)
+	return err
+}

openBrowser.go

@@ -0,0 +1,24 @@
+package shell
+
+import (
+	"os/exec"
+	"runtime"
+)
+
+// openBrowser opens the specified URL in the default browser of the user.
+func OpenBrowser(url string) error {
+	var cmd string
+	var args []string
+
+	switch runtime.GOOS {
+	case "windows":
+		cmd = "cmd"
+		args = []string{"/c", "start"}
+	case "darwin":
+		cmd = "open"
+	default: // "linux", "freebsd", "openbsd", "netbsd"
+		cmd = "xdg-open"
+	}
+	args = append(args, url)
+	return exec.Command(cmd, args...).Start()
+}

proc.go

@@ -0,0 +1,57 @@
+package shell
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strconv"
+	"strings"
+)
+
+// get your parent PID
+func GetPPID(pid int) (int, error) {
+	data, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/stat", pid))
+	if err != nil {
+		return 0, err
+	}
+
+	parts := strings.Fields(string(data))
+	if len(parts) < 4 {
+		return 0, fmt.Errorf("unexpected format of /proc/%d/stat", pid)
+	}
+
+	ppid, err := strconv.Atoi(parts[3])
+	if err != nil {
+		return 0, err
+	}
+
+	return ppid, nil
+}
+
+// get comm from proc
+func GetComm(pid int) (string, error) {
+	data, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/comm", pid))
+	if err != nil {
+		return "", err
+	}
+
+	return strings.TrimSpace(string(data)), nil
+}
+
+/*
+func main() {
+    pid := os.Getpid()
+    ppid, err := getPPID(pid)
+    if err != nil {
+        fmt.Println("Error getting PPID:", err)
+        return
+    }
+
+    comm, err := getComm(ppid)
+    if err != nil {
+        fmt.Println("Error getting comm:", err)
+        return
+    }
+
+    fmt.Println(comm)
+}
+*/

shell.go

@@ -1,124 +0,0 @@
-package shell
-
-import "fmt"
-import "log"
-import "strings"
-import "time"
-import "os"
-import "os/exec"
-import "bufio"
-import "github.com/davecgh/go-spew/spew"
-import "github.com/svent/go-nbreader"
-
-func Script(cmds string) int {
-	// split on new lines (while we are at it, handle stupid windows text files
-	lines := strings.Split(strings.Replace(cmds, "\r\n", "\n", -1), "\n")
-
-	for _, line := range lines {
-		line = strings.TrimSpace(line) // this is like 'chomp' in perl
-		fmt.Println("LINE:", line)
-		time.Sleep(1)
-		Run(line)
-	}
-	return 0
-}
-
-func Run(cmdline string) int {
-	log.Println("START " + cmdline)
-
-	cmd := strings.TrimSpace(cmdline) // this is like 'chomp' in perl
-	cmdArgs := strings.Fields(cmd)
-	if (len(cmdArgs) == 0) {
-		log.Println("END   ", cmd)
-		return 0 // nothing to do
-	}
-	if (cmdArgs[0] == "cd") {
-		if (len(cmdArgs) > 1) {
-			log.Println("os.Chdir()", cmd)
-			os.Chdir(cmdArgs[1])
-		}
-		log.Println("END   ", cmd)
-		return 0 // nothing to do
-	}
-
-	process := exec.Command(cmdArgs[0], cmdArgs[1:len(cmdArgs)]...)
-	stdout, _ := process.StdoutPipe()
-	stderr, _ := process.StderrPipe()
-	process.Start()
-
-	f := bufio.NewWriter(os.Stdout)
-
-	newreader := bufio.NewReader(stdout)
-	nbr := nbreader.NewNBReader(newreader, 1024)
-
-	newerrreader := bufio.NewReader(stderr)
-	nbrerr := nbreader.NewNBReader(newerrreader, 1024)
-
-	for {
-		time.Sleep(2 * time.Millisecond)   // only check the buffer 500 times a second
-		// log.Println("sleep done")
-
-		oneByte := make([]byte, 1024)
-		count, err := nbr.Read(oneByte)
-
-		if (err != nil) {
-			// log.Println("Read() count = ", count, "err = ", err)
-			oneByte = make([]byte, 1024)
-			count, err = nbr.Read(oneByte)
-			f.Write([]byte(string(oneByte)))
-			f.Flush()
-		}
-		f.Write([]byte(string(oneByte)))
-		f.Flush()
-
-		oneByte = make([]byte, 1024)
-		count, err = nbrerr.Read(oneByte)
-
-		if (err != nil) {
-			oneByte = make([]byte, 1024)
-			count, err = nbrerr.Read(oneByte)
-			f.Write([]byte(string(oneByte)))
-			f.Flush()
-
-			log.Println("Read() count = ", count, "err = ", err)
-			spew.Dump(process.Process)
-			spew.Dump(process.ProcessState)
-			err := process.Wait()
-			if err != nil {
-				spew.Dump(err.(*exec.ExitError))
-				spew.Dump(process.ProcessState)
-				stuff := err.(*exec.ExitError)
-				log.Println("ERROR ", stuff)
-				log.Println("END   ", cmdline)
-				return -1
-			}
-			log.Println("END   ", cmdline)
-			return 0
-		} else {
-			f.Write([]byte(string(oneByte)))
-			f.Flush()
-		}
-
-		// spew.Dump(reflect.ValueOf(cmd.Process).Elem())
-	}
-
-	err := process.Wait()
-
-	if err != nil {
-		spew.Dump(err.(*exec.ExitError))
-		spew.Dump(process.ProcessState)
-		stuff := err.(*exec.ExitError)
-		log.Println("ERROR ", stuff)
-		log.Println("END   ", cmdline)
-		return -1
-	}
-	log.Println("END   ", cmdline)
-	return 0
-}
-
-func Daemon(cmdline string, timeout time.Duration) int {
-	for {
-		Run(cmdline)
-		time.Sleep(timeout)
-	}
-}

structs.go

@@ -0,0 +1,56 @@
+package shell
+
+import (
+	"bufio"
+	"bytes"
+	"io"
+	"os/exec"
+)
+
+var FileMap map[string]*File
+
+var readBufferSize int
+
+type File struct {
+	Name string
+	// BufferSize	int
+	// Buffer		*bytes.Buffer
+	// Fbytes		[]byte
+	TotalCount int
+	Empty      bool
+	Dead       bool
+
+	Fio    io.ReadCloser // := process.StdoutPipe()
+	Fbufio *bufio.Reader // := bufio.NewReader(pOUT)
+	// Fnbreader *nbreader.NBReader // := nbreader.NewNBReader(readOUT, 1024)
+}
+
+// early code playground
+type OldShell struct {
+	Cmdline string
+	Process *exec.Cmd
+	Done    bool
+	Quiet   bool
+	Fail    bool
+	Error   error
+	Buffer  *bytes.Buffer
+
+	// which names are really better here?
+	// for now I init them both to test out
+	// how the code looks and feels
+	STDOUT *File
+	STDERR *File
+	Stdout *File
+	Stderr *File
+}
+
+// default values for OldShell
+func New() *OldShell {
+	var tmp OldShell
+
+	tmp.Done = false
+	tmp.Fail = false
+	tmp.Quiet = quiet
+
+	return &tmp
+}

time.go

@@ -0,0 +1,99 @@
+package shell
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"go.wit.com/log"
+)
+
+// converts a git for-each-ref date. "Wed Feb 7 10:13:38 2024 -0600"
+func getGitDateStamp(gitdefault string) (time.Time, string, string) {
+	// now := time.Now().Format("Wed Feb 7 10:13:38 2024 -0600")
+	const gitLayout = "Mon Jan 2 15:04:05 2006 -0700"
+	tagTime, err := time.Parse(gitLayout, gitdefault)
+	if err != nil {
+		log.Warn("GOT THIS IN PARSE AAA." + gitdefault + ".AAA")
+		log.Warn(err)
+		return time.Now(), "Feb 1 12:34:56 1978 -0600", ""
+	}
+	return tagTime, gitdefault, GetDurationStamp(tagTime)
+}
+func getRawDateStamp(raw string) (time.Time, string, string) {
+	parts := strings.Split(raw, " ")
+	if len(parts) == 0 {
+		// raw was blank here
+		// return "Jan 4 1977", "40y" // eh, why not. it'll be easy to grep for this
+		return time.Now(), "Jan 4 1977", "40y" // eh, why not. it'll be easy to grep for this
+	}
+	i, err := strconv.ParseInt(parts[0], 10, 64) // base 10 string, return int64
+	if err != nil {
+		log.Warn("Error converting timestamp:", raw)
+		log.Warn("Error converting timestamp err =", err)
+		return time.Now(), "", ""
+	}
+
+	// Parse the Unix timestamp into a time.Time object
+	gitTagDate := time.Unix(i, 0)
+	return gitTagDate, gitTagDate.UTC().Format("2006/01/02 15:04:05 UTC"), GetDurationStamp(gitTagDate)
+}
+
+func GetDurationStamp(t time.Time) string {
+
+	// Get the current time
+	currentTime := time.Now()
+
+	// Calculate the duration between t current time
+	duration := currentTime.Sub(t)
+
+	return FormatDuration(duration)
+}
+
+func FormatDuration(d time.Duration) string {
+	result := ""
+
+	// check if it's more than a year
+	years := int(d.Hours()) / (24 * 365)
+	if years > 0 {
+		result += fmt.Sprintf("%dy ", years)
+		return result
+	}
+
+	// check if it's more than a day
+	days := int(d.Hours()) / 24
+	if days > 0 {
+		result += fmt.Sprintf("%dd ", days)
+		return result
+	}
+
+	// check if it's more than an hour
+	hours := int(d.Hours()) % 24
+	if hours > 0 {
+		result += fmt.Sprintf("%dh ", hours)
+		return result
+	}
+
+	// check if it's more than a minute
+	minutes := int(d.Minutes()) % 60
+	if minutes > 0 {
+		result += fmt.Sprintf("%dm ", minutes)
+		return result
+	}
+
+	// check if it's more than a second
+	seconds := int(d.Seconds()) % 60
+	if seconds > 0 {
+		result += fmt.Sprintf("%ds", seconds)
+		return result
+	}
+
+	// report in milliseconds
+	ms := int(d.Milliseconds())
+	if ms > 100 {
+		// todo: print .3s, etc ?
+	}
+	result += fmt.Sprintf("%dms", ms)
+	return result
+}

wget.go

@@ -0,0 +1,97 @@
+package shell
+
+/*
+	This simply parses the command line arguments using the default golang
+	package called 'flag'. This can be used as a simple template to parse
+	command line arguments in other programs.
+
+	It puts everything in a 'config' Protobuf which I think is a good
+	wrapper around the 'flags' package and doesn't need a whole mess of
+	global variables
+*/
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+
+	"go.wit.com/log"
+)
+
+func Wget(url string) *bytes.Buffer {
+	buf := new(bytes.Buffer)
+
+	// Get the data
+	resp, err := http.Get(url)
+	if err != nil {
+		handleError(err, -1)
+		return nil
+	}
+	defer resp.Body.Close()
+
+	log.Log(INFO, "res.StatusCode: %d\n", resp.StatusCode)
+	if resp.StatusCode != 200 {
+		handleError(fmt.Errorf(fmt.Sprint("%d", resp.StatusCode)), -1)
+		return nil
+	}
+
+	buf.ReadFrom(resp.Body)
+	return buf
+}
+
+func WgetToFile(filepath string, url string) error {
+	log.Log(INFO, "WgetToFile() filepath =", filepath)
+	log.Log(INFO, "WgetToFile() URL =", url)
+	// Get the data
+	resp, err := http.Get(url)
+	if err != nil {
+		handleError(err, -1)
+		return err
+	}
+	defer resp.Body.Close()
+
+	// Create the file
+	out, err := os.Create(filepath)
+	if err != nil {
+		handleError(err, -1)
+		return err
+	}
+	defer out.Close()
+
+	// Write the body to file
+	_, err = io.Copy(out, resp.Body)
+	return err
+}
+
+// write out a file. Always be nice and end with '\n'
+// if you are here and want to complain about ending in '\n'
+// then you probably aren't going to like lots of things in this
+// package. I will quote the evilwm man page:
+//
+// BUGS: The author's idea of friendly may differ to that of many other people.
+func Write(filepath string, data string) bool {
+	// TODO: this isn't working for some reason and is making two '\n' chars
+	data = strings.TrimSpace(data) + "\n"
+	// Create the file
+	ospath := Path(filepath)
+	log.Log(INFO, "shell.Write() START ospath =", ospath, "filepath =", filepath)
+	out, err := os.Create(ospath)
+	if err != nil {
+		return false
+	}
+	defer out.Close()
+
+	// Write the body to file
+	// _, err = io.Copy(out, resp.Body)
+	count, err := io.Copy(out, strings.NewReader(data))
+	if err != nil {
+		handleError(err, -1)
+		return false
+	}
+	handleError(nil, int(count))
+	log.Log(INFO, "shell.Write() END", ospath)
+	return true
+}

windows.go

@@ -0,0 +1,18 @@
+//go:build windows
+// +build windows
+
+// put stuff in here that you only want compiled under windows
+
+package shell
+
+import (
+	"go.wit.com/log"
+)
+
+func handleSignal(err interface{}, ret int) {
+	log.Warn("handleSignal() windows doesn't do signals")
+}
+
+func UseJournalctl() {
+	log.Warn("journalctl doesn't exist on windows")
+}

windowsWrapper.go

@@ -0,0 +1,26 @@
+package shell
+
+import (
+	"runtime"
+	"strings"
+
+	"go.wit.com/log"
+)
+
+func Execname(filename string) string {
+	if runtime.GOOS != "windows" {
+		return filename
+	}
+	return Path(filename) + ".exe"
+}
+
+func Path(filename string) string {
+	log.Log(INFO, "Path() START filename =", filename)
+	if runtime.GOOS != "windows" {
+		log.Log(INFO, "Path() END filename =", filename)
+		return filename
+	}
+	filename = strings.Replace(filename, "/", "\\", -1)
+	log.Log(INFO, "Path() END filename =", filename)
+	return filename
+}

xterm.go

@@ -0,0 +1,140 @@
+package shell
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"go.wit.com/log"
+)
+
+func scanToParent(pid int) (bool, string) {
+	ppid, err := GetPPID(pid)
+	if err != nil {
+		fmt.Println("Error getting PPID:", err)
+		return true, ""
+	}
+
+	comm, err := GetComm(ppid)
+	if err != nil {
+		fmt.Println("Error getting comm:", err)
+		return true, ""
+	}
+
+	log.Info("scanToParent() found:", comm)
+
+	// if this is an xterm
+	switch comm {
+	case "xterm":
+		return true, "xterm"
+	case "mate-terminal":
+		return true, "mate-terminal"
+	case "bash":
+		// keep digging for the parent xterm
+		return scanToParent(ppid)
+	case "make":
+		// keep digging for the parent xterm
+		return scanToParent(ppid)
+	default:
+		return false, comm
+	}
+	if comm == "bash" {
+	}
+
+	ok, better := scanToParent(ppid)
+	if ok {
+		return ok, better
+	}
+	if better == "" {
+		// if the parent was blank, at least return the something that we have
+		// since something is better than nothing
+		return false, comm
+	}
+	return ok, better
+}
+
+// returns a string of the xterm the user is using
+// for example, "xterm" or "mate-terminal"
+func Terminal() string {
+	pid := os.Getpid()
+	_, comm := scanToParent(pid)
+	/*
+		ppid, err := GetPPID(pid)
+		if err != nil {
+			fmt.Println("Error getting PPID:", err)
+			return ""
+		}
+
+		comm, err := GetComm(ppid)
+		if err != nil {
+			fmt.Println("Error getting comm:", err)
+			return ""
+		}
+	*/
+
+	return comm
+}
+
+// returns a string of the shell the user is using
+func Shell() string {
+	envsh := os.Getenv("SHELL")
+	switch envsh {
+	case "/bin/bash":
+		return "bash"
+	default:
+		return envsh
+	}
+	return envsh
+}
+
+func getXtermCmd(cmd []string) []string {
+	var term string
+	// doesn't work yet
+	// term = Terminal()
+	term = "xterm"
+	switch term {
+	case "mate-terminal":
+		newcmd := []string{"mate-terminal", "-e"}
+		newcmd = append(newcmd, cmd...)
+		return newcmd
+	default:
+		// unknown terminal. use xterm
+		newcmd := []string{"xterm", "-geometry", "140x32", "-e", "bash", "-c"}
+		// fix/shell escape sequence this for quote chars, etc
+		// tmp := "\"" + strings.Join(cmd, " ") + ";bash\""
+		newcmd = append(newcmd, cmd...)
+		// newcmd = append(newcmd, cmd...)
+		return newcmd
+	}
+}
+
+// spawns an xterm with something you can run at a command line
+func XtermCmd(path string, cmd []string) {
+	go XtermCmdWait(path, cmd)
+}
+
+// runs an xterm
+// waits until xterm exits
+func XtermCmdWait(path string, cmd []string) {
+	var argsXterm = getXtermCmd(cmd)
+
+	log.Info("XtermCmd() path =", path, "cmd =", argsXterm)
+
+	// keeps git diff from exiting on small diffs
+	os.Setenv("LESS", "-+F -+X -R")
+
+	PathRunLog(path, argsXterm, INFO)
+}
+
+// spawns an xterm with something you can run at a command line
+// then executes bash
+func XtermCmdBash(path string, cmd []string) {
+	var tmp []string
+	var argsXterm = getXtermCmd(cmd)
+	bash := "\"-c '"
+	bash += strings.Join(cmd, " ")
+	bash += "'; bash\""
+	tmp = append(argsXterm, "bash", bash)
+	log.Info("XtermCmd() path =", path, "cmd =", tmp)
+	go PathRunLog(path, tmp, INFO)
+}